US6622572B2 - Ultrasonic flowmeter for controlling the gain of an amplifier for amplifying received signals - Google Patents

Ultrasonic flowmeter for controlling the gain of an amplifier for amplifying received signals Download PDF

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Publication number
US6622572B2
US6622572B2 US10/097,128 US9712802A US6622572B2 US 6622572 B2 US6622572 B2 US 6622572B2 US 9712802 A US9712802 A US 9712802A US 6622572 B2 US6622572 B2 US 6622572B2
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United States
Prior art keywords
amplifier
gain
peak
peak value
value
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US10/097,128
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English (en)
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US20020148302A1 (en
Inventor
Tamotsu Kobayashi
Kunikazu Shigeta
Toru Fujii
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Tokyo Keiso Co Ltd
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Tokyo Keiso Co Ltd
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Assigned to TOKYO KEISO KABUSHIKI-KAISHA reassignment TOKYO KEISO KABUSHIKI-KAISHA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SHIGETA, KUNIKAZU, FUJII, TORU, KOBAYASHI, TAMOTSU
Publication of US20020148302A1 publication Critical patent/US20020148302A1/en
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Publication of US6622572B2 publication Critical patent/US6622572B2/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)
US10/097,128 2001-04-02 2002-03-14 Ultrasonic flowmeter for controlling the gain of an amplifier for amplifying received signals Expired - Fee Related US6622572B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001-103757 2001-04-02
JP2001103757A JP3782675B2 (ja) 2001-04-02 2001-04-02 超音波流量計

Publications (2)

Publication Number Publication Date
US20020148302A1 US20020148302A1 (en) 2002-10-17
US6622572B2 true US6622572B2 (en) 2003-09-23

Family

ID=18956763

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/097,128 Expired - Fee Related US6622572B2 (en) 2001-04-02 2002-03-14 Ultrasonic flowmeter for controlling the gain of an amplifier for amplifying received signals

Country Status (4)

Country Link
US (1) US6622572B2 (ja)
EP (1) EP1248083B1 (ja)
JP (1) JP3782675B2 (ja)
DE (1) DE60223616T2 (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040055611A1 (en) * 2002-09-24 2004-03-25 Mark Penny Patient medical fluid parameter data processing system
US20050288873A1 (en) * 2004-06-28 2005-12-29 Nelson Urdaneta Ultrasonic liquid flow controller
US20060145683A1 (en) * 2004-12-27 2006-07-06 Yugen-Kaisha Techno Data Transmission measuring system
US20070034016A1 (en) * 2005-08-12 2007-02-15 Celerity, Inc. Ultrasonic flow sensor
US20080196511A1 (en) * 2007-02-20 2008-08-21 Ge Healthcare Bio-Sciences Ab Ultrasonic flow meter
DE102007013176B4 (de) * 2006-03-29 2009-06-04 Smc K.K. Durchflussratenmessvorrichtung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108645465A (zh) * 2018-05-10 2018-10-12 四川理工学院 一种基于工程力学的流量计

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4138879A (en) * 1977-08-22 1979-02-13 Tif Instruments, Inc. Sightless bubble detector
US5503035A (en) * 1993-05-20 1996-04-02 Yokogawa Electric Corporation Ultrasonic fluid vibrating flowmeter
EP1211488A2 (en) * 2000-11-27 2002-06-05 Tokyo Keiso Kabushiki-Kaisha Transit-time difference type ultrasonic flowmeter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6217677A (ja) * 1985-07-17 1987-01-26 Yokogawa Electric Corp 超音波測定装置
US4787252A (en) * 1987-09-30 1988-11-29 Panametrics, Inc. Differential correlation analyzer
US5277070A (en) * 1991-08-01 1994-01-11 Xecutek Corporation Ultrasonic gas flow measurement method and apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4138879A (en) * 1977-08-22 1979-02-13 Tif Instruments, Inc. Sightless bubble detector
US5503035A (en) * 1993-05-20 1996-04-02 Yokogawa Electric Corporation Ultrasonic fluid vibrating flowmeter
EP1211488A2 (en) * 2000-11-27 2002-06-05 Tokyo Keiso Kabushiki-Kaisha Transit-time difference type ultrasonic flowmeter

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040055611A1 (en) * 2002-09-24 2004-03-25 Mark Penny Patient medical fluid parameter data processing system
US7818184B2 (en) * 2002-09-24 2010-10-19 Draeger Medical Systems, Inc. Patient medical fluid parameter data processing system
US20050288873A1 (en) * 2004-06-28 2005-12-29 Nelson Urdaneta Ultrasonic liquid flow controller
US7117104B2 (en) 2004-06-28 2006-10-03 Celerity, Inc. Ultrasonic liquid flow controller
US20060145683A1 (en) * 2004-12-27 2006-07-06 Yugen-Kaisha Techno Data Transmission measuring system
US7305309B2 (en) 2004-12-27 2007-12-04 Yugen-Kaisha Techno Data Transmission measuring system with high time resolution
US20070034016A1 (en) * 2005-08-12 2007-02-15 Celerity, Inc. Ultrasonic flow sensor
US7360448B2 (en) 2005-08-12 2008-04-22 Celerity, Inc. Ultrasonic flow sensor having reflecting interface
DE102007013176B4 (de) * 2006-03-29 2009-06-04 Smc K.K. Durchflussratenmessvorrichtung
US20080196511A1 (en) * 2007-02-20 2008-08-21 Ge Healthcare Bio-Sciences Ab Ultrasonic flow meter
US7673527B2 (en) * 2007-02-20 2010-03-09 Ge Healthcare Bio-Sciences Ab Flow cell for measuring flow rate of a fluid using ultrasonic waves

Also Published As

Publication number Publication date
DE60223616D1 (de) 2008-01-03
DE60223616T2 (de) 2008-10-23
JP3782675B2 (ja) 2006-06-07
US20020148302A1 (en) 2002-10-17
JP2002296085A (ja) 2002-10-09
EP1248083B1 (en) 2007-11-21
EP1248083A1 (en) 2002-10-09

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Owner name: TOKYO KEISO KABUSHIKI-KAISHA, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KOBAYASHI, TAMOTSU;SHIGETA, KUNIKAZU;FUJII, TORU;REEL/FRAME:012993/0736;SIGNING DATES FROM 20020315 TO 20020318

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Effective date: 20150923